Catch them all? There are three different influenza viruses and they can co-circulate each season

Posted onAugust 22, 2025August 22, 2025

We tend to say we “caught the flu” this season. But there’s more than one flu virus. Because mild and asymptomatic infections can occur with influenza viruses, and because the Read More …

The “Infection Pause”: because it’s about fewer infections, not an immune debt to repay

Posted onJuly 31, 2025August 1, 2025

There was a real, measurable shift in the peak season for several endemic human pathogens as well as a rebound in infections, coinfections, and disease severity among them after the Read More …

A Flunami in July

Posted onJuly 27, 2025July 27, 20252 Comments

Australia has recorded its largest number of laboratory-confirmed influenza virus detections among sick people for any July on record. While the numbers may be slowing, there is no way of Read More …

COVID-19 is a Pandemic: What if it was a Pandemic Emergency? And what are they anyway?

Posted onJuly 24, 2025July 25, 2025

Words carry intent and meaning. Their misuse causes harm. The word “pandemic” has a range of definitions, and it’s used regularly by experts associated with the World Health Organization (WHO). Read More …

In Australia, COVID-19 deaths did decrease between 2023 and 2024, but it’s still a major killer.

Posted onJuly 2, 2025August 1, 2025

At the prompting of a Tweep (thanks Michael), I’ve revisited my September 2024 post “In Australia, COVID-19 deaths may have stopped decreasing” to see the latest Australian Bureau of Statistics Read More …

Flu down under is a July thing

Posted onJune 16, 2025August 8, 2025

This is a graph I didn’t know I wanted to make. But now I have, I needed to make it! It shows the influenza virus detections reported to laboratories in Read More …

Q fever – an old zoonosis with a better diagnosis

Posted onJune 9, 2025June 16, 2025

Q fever or ‘query fever’ is a vaccine-preventable zoonosis first described in Australia in 19377. The causative agent8 for this disease is the obligate intracellular coccobacillus Coxiella burnetii. The bacterium Read More …

19th April Harvard webpage landing page snippet

What if Harvard loses?

Posted onApril 19, 2025April 23, 2025

The prestigious Ivy League private university has taken a stand against the Trump administration’s demands. Briefly (see the link above for full details), these set out a list that aims Read More …

Measles takes your immune memories

Posted onApril 9, 2025April 9, 2025

Acute measles virus (MeV) infection can be serious You may have heard that the United States is having a multistate outbreak of MeV infections, mainly causing its worst outcomes among Read More …

A measles infographic: virus, symptoms and white blood cells

Posted onMarch 27, 2025April 3, 2025

Here’s a measles infographic prepared using a range of sources and some feedback from the public. It aims to present measles symptoms and the levels of the virus and white Read More …

United States influenza: biggest season in 15 years of data

Posted onFebruary 18, 2025February 25, 2025

The United States has been suffering from many influenza virus infections. And it looks like those are translating into a “flunami” of hospitalisations, which has resulted in the US CDC Read More …

No new A/H7N8 chook farms hit in Victoria so far

Posted onFebruary 17, 2025February 17, 2025

Two poultry farms in the southern Australian State of Victoria have been quarantined for high pathogenicity avian influenza A/H7N8 infections, but spread to additional farms has not been observed so Read More …

The US 2024-2025 flu season and the vaccine

Posted onFebruary 13, 2025February 13, 2025

The United States has been having one of its biggest influenza (flu) years. Let’s look at how this season’s northern hemisphere flu vaccine, which most Americans most likely didn’t seek Read More …

An illustration of a spherical RSV virion.

A good news RSV vaccine story for adults

Posted onFebruary 5, 2025February 5, 2025

An overview of a new study in adults showing the Abrysvo respiratory syncytial virus (RSV) vaccine preventing lower respiratory tract disease (LRTD) caused by RSV infection among older adults, a Read More …

Japanese encephalitis virus (JEV) in Australia – a 2022 study and the current state

Posted onJanuary 29, 2025February 19, 2025

A brief overview of a report describing the 2022 discovery of Japanese encephalitis virus (JEV) in Australia. This was the first local outbreak in southern Australia and set the stage Read More …

Virology Down Under

Facts, data, info, expert opinion and a reasonable, occasionally grumpy, voice on viruses: what they are, how they tick and the illnesses they may cause.

Latest posts...

Catch them all? There are three different influenza viruses and they can co-circulate each season

A Flunami in July

The “Infection Pause”: because it’s about fewer infections, not an immune debt to repay

COVID-19 is a Pandemic: What if it was a Pandemic Emergency? And what are they anyway?

Catch them all? There are three different influenza viruses and they can co-circulate each season

The “Infection Pause”: because it’s about fewer infections, not an immune debt to repay

A Flunami in July

COVID-19 is a Pandemic: What if it was a Pandemic Emergency? And what are they anyway?

In Australia, COVID-19 deaths did decrease between 2023 and 2024, but it’s still a major killer.

Flu down under is a July thing

Q fever – an old zoonosis with a better diagnosis

What if Harvard loses?

Measles takes your immune memories

A measles infographic: virus, symptoms and white blood cells

United States influenza: biggest season in 15 years of data

No new A/H7N8 chook farms hit in Victoria so far

The US 2024-2025 flu season and the vaccine

A good news RSV vaccine story for adults

Japanese encephalitis virus (JEV) in Australia – a 2022 study and the current state